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With the development of economy, people pay more and more attention to environmental protection, and the importance of sewage treatment to life and enterprises is becoming more and more obvious. It is not uncommon for many enterprises to shut down for rectification due to unqualified sewage discharge. Therefore, this paper mainly introduces the specific function and working principle of the sewage treatment centrifuge. Sewage treatment refers to the use of professional sewage treatment equipment to treat domestic and industrial wastewater to reduce or completely eliminate pollutants contained in sewage, through physical methods, chemical reactions or biological treatment processes, such as reducing nitrogen and phosphorus in sewage. content. Nitrogen and phosphorus are the main chemicals responsible for eutrophication of water bodies.